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AK: Implement reverse iterator for Vector class

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Federico Guerinoni 2022-02-23 15:59:00 +01:00 • committed by Andreas Kling
parent 74650b4e32
commit b0e74a3fd3
2 changed files with 30 additions and 0 deletions
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26
Tests/AK/TestVector.cpp
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@ -533,3 +533,29 @@ TEST_CASE(reference_deletion_should_not_affect_object)
}
EXPECT_EQ(times_deleted, 1u);
}
TEST_CASE(rbegin)
{
Vector<int> v { 1, 2, 3, 4, 5, 6, 7, 8, 0 };
auto const expected = v.begin() + 4;
auto const expected_in_reverse = v.rbegin() + 4;
EXPECT_EQ(*expected, *expected_in_reverse);
}
TEST_CASE(rend)
{
Vector<int> v { 1, 2, 3, 4, 5, 6, 7, 8, 0 };
const auto expected = v.end() - 5;
const auto expected_in_reverse = v.rend() - 5;
EXPECT_EQ(*expected, *expected_in_reverse);
}
TEST_CASE(reverse_loop)
{
Vector<int> v { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
int index = 9;
for (auto rev = v.rbegin(); rev != v.rend(); ++rev)
EXPECT_EQ(*rev, index--);
}